Caffeine may be the most popular legal addictive stimulant that is available to mankind. Besides coffee, tea, guarana and kola nut have excess amount of this xanthine alkaloid, which is actually acting as a psychoactive drug. In several plants, caffeine is an effective insect repellant, but this trimethylxanthine is deemed by the Food and Drug Administration as generally safe food substance. It is an antagonist of adenosine receptors. The effect of caffeine is individual and may more or less increase the ability to perform physical and mental labor. It reduces the effects of fatigue and may in long term help predominantly men reduce the risk of developing Parkinson’s disease. It has also been observed that caffeine has nootropic effects, furthermore, regular consumption of caffeine may significantly reduce the risk of heart diseases.

L-Glutamine- Found in plasma and muscles of the human body, L-Glutamine is an essential amino acid. In the skeletal muscle cells, more than 60% of free floating amino acid is made of L-Glutamine. It acts as the primary donor of nitrogen and moves in the body wherever required. This amino acid has been considered useful in reducing physical stress. During surgery or heavy exercise regime the human body needs it for maintaining the level of glutamine in muscles and blood. It is also essential for maintenance of immune system and prevention of intestinal stress. Glutamine supplements can help in restoring L-Glutamine levels during stress. L-Glutamine supplements are relatively less expensive and help in minimizing the breakdown of muscles. It also improves the metabolism of protein in the human body and ensures a positive balance of nitrogen.

L-Histidine- Histidine is one of the twenty amino acids that are considered to be the building blocks of proteins. This proteinogenic amino acid is believed to be non-essential to adult humans, because at some point, after reaching a certain age, they begin to synthesize it. On the other hand, histidine is an essential amino acid to infants, and needs to be part of their regular diet. The amino acid L-Histidine is identified as a precursor for carnosine and histamine biosynthesis. In research studies it has been proven that histidine supplementation can cause an elevated excretion of zinc in rats, up to six times the normal amount. Humans sometimes use histidine supplementation to artificially raise histamine levels. L-Histidine is identified as playing a role with several trace elements, such as iron, molybdenum, manganese, zinc and copper.

L-Isoleucine is one of the nine essential amino acids that is not produced in the body. It can be obtained from animal sources like liver, fish, eggs, chicken, meat and vegetable sources like rye, cashew nuts, almonds, lentils, chickpeas and soy proteins. The metabolism of L-Isoleucine takes place in muscle tissue. It is needed for the formation of hemoglobin and stabilizes and regulates blood sugar and energy levels. It is also known to increase endurance levels and helps in the recovery of muscles after exercise. It strengthens the immune system’s ability to fight off infections and increases the level of growth hormones and insulin to maintain the body’s balance. A deficiency leads to a number of physical and mental disorders with symptoms similar to hypoglycemia.

L-Leucine- Leucine is an essential amino acid that does not synthesize in humans and so must be ingested. It slows the degradation of muscle tissue and is used in the formation of sterols.

L-Lysine is an essential amino acid obtainable from daily food sources we consume. It has many medicinal properties which benefit us in our daily lives. While it is mainly used in the treatment of herpes, it also helps us become stronger by building our muscle tissues. It helps us to recover form injuries and surgeries besides absorbing calcium for building healthy bones. It also regulates the production of antibodies, enzymes and hormones which are required for healthy immunity level. L-lysine when consumed in high doses can lead to serious conditions. Although L-lysine is important for good health, we never really realize we are consuming it. Deficiency of L-lysine causes lethargy, amnesia, enzyme disorders, reproductive problems and hair loss. Generally, L-lysine is present in all vegetarian and non-vegetarian foods. Fish and cereals have higher amount of L-lysine in them.

L-Methionine, an essential amino acid for the human body, acts as a building block for proteins. Since the body cannot produce it naturally, you need to take it through supplements and diet. This antioxidant is found in dairy products and meat and is essential for producing creatine. It is soluble in water and helps in breakdown of fats. You can also find L-Methionine in vegetables and fruits. Since it is a glycogenic amino acid, it helps in forming glycogen and D-glucose. On a daily basis, experts recommend only 13 mg of L-Methionine for adults. These supplements are not only effective in liver disease treatment but also beneficial for individuals who follow a vegetarian diet. You can enhance the quality of your skin, hair and nails by taking L-Methionine supplements.

L-Phenylalanine- The human body needs L-Phenylalanine for survival as it is an essential amino acid. It is found in food items that are rich in protein such as eggs, meat, dairy products, beans and fish. Since the body cannot produce L-Phenylalanine from other chemicals, you need to increase the intake of protein for fulfilling the nutritional needs. L-Phenylalanine is one of the chemical forms of Phenylalanine, an amino acid. It helps in building up of several proteins produced by human body. L-Phenylalanine supplements act as an appetite suppressant as it initiates the release of cholecystokinin, an intestinal hormone. Once this hormone enters the stomach, it signals your brain that you are not hungry anymore. According to experts, you should not take more than 500-1000 mg of L-Phenylalanine per day.

L-Threonine optimizes the utilization of animals that you consume in order to deposit protein to the muscles and aides in weight gain.

L-Valine is an essential alpha amino acid and one of the three essential branched chain amino acids found in the human body. The other two essential BCAAs are leucine and isoleucine. The name is derived from the plant valerian. Valine is also classified as nonpolar and is known by sickle cell disease sufferers as the substitute amino acid for the glutamic acid, whereby the hydrophobic qualities of valine cause the hemoglobin to not fold correctly. Just like the other three BCAAs, the primary source of valine is through ingestion of proteins, where valine is a component; some such sources would be fish, peanuts, poultry, cottage cheese, lentils and sesame seeds. L-Valine is found in large quantities in muscles, whereby in the muscle metabolism it is essential for the restoration and tissue growth.

Phosphate (Phosphorus) is the chemical element with the atomic number 15 in the periodic table. It is not found as a free element anywhere in the world. In biology and biochemistry it may be the most important element, being present in all living cells of living species. It is present in the DNA, in the RNA, in ATP, but is also found in cell membranes in form of phospholipids. It is also present in the bones, where it builds calcium phosphate salts, responsible for strong bones. Apatite is a collection of phosphate minerals which are generally found in bones and teeth; namely bromapatite, fluorapatite, chlorapatite and hydroxyapatite. Several phosphates are being added to body building supplements and powders, intended to aid in skeletal and cellular strength improvement.